In the heyday of the guillotine during the French Revolution, it is said that many of the condemned were asked to blink for as long as possible after decapitation. While many reportedly did not blink at all, some complied for as long as thirty seconds. Still other observations describe much more specific reactions to stimuli following beheading. Consider the case of Languille, a convicted murderer who was guillotined in France. He was observed by Dr. Beaurieux during his execution at 5:30am on June 28th, 1905. As written in Archives d'Anthropologie Criminelle, here are the doctor's observations:
The face relaxed, the lids half closed on the eyeballs, leaving only the white of the conjunctiva visible, exactly as in the dying whom we have occasion to see every day in the exercise of our profession, or as in those just dead.
It was then that I called in a strong, sharp voice: 'Languille!' I saw the eyelids slowly lift up, without any spasmodic contractions … Next Languille's eyes very definitely fixed themselves on mine and the pupils focused themselves … After several seconds, the eyelids closed again, slowly and evenly, and the head took on the same appearance as it had had before I called out.
It was at that point that I called out again and, once more, without any spasm, slowly, the eyelids lifted and undeniably living eyes fixed themselves on mine with perhaps even more penetration than the first time. Then there was a further closing of the eyelids, but now less complete. I attempted the effect of a third call; there was no further movement and the eyes took on the glazed look which they have in the dead.
I have just recounted to you with rigorous exactness what I was able to observe. The whole thing had lasted twenty-five to thirty seconds.